nightly breaking slog-1.4

[przygienda]

error[E0178]: expected a path on the left-hand side of +, not (Fn(D::Error) -> E)
--> /Users/prz/.cargo/registry/src/git.colasdn.top-1ecc6299db9ec823/slog-1.4.0/src/_drain.rs:119:17
|
119 | map_fn: Box<(Fn(D::Error) -> E) + 'static+ Send+Sync>,
| ^^^^^^^^^^^^^^^^^^^ expected a path
|
= help: perhaps you forgot parentheses? (per RFC 438)

looks to me like compiler bug though ...

[dimfeld]

I'm seeing this too with the nightly build from 2017-01-17 (x86_64-apple-darwin). It works fine with 2017-01-12. I haven't tried any builds in between.

[dpc]

Thanks for reporting it. I escalated: rust-lang/rust#39169

Workaround would be to pin the nighty version to yesterday one with rustup.

[dpc]

1.4.1 released